Re: Temp at Level 3 data centers

Once upon a time, bzs@theworld.com <bzs@theworld.com> said:

Also, the IBM 3090 at least, was cooled via helium-filled pipes kind of like today's liquid cooled systems. It was full of plumbing. If you opened it up some chips were right on copper junction boxes (maybe they were just sensors but it looked cool.)

Cray supercomputers had Freon lines through them for cooling, up until the last generation of the "old school" supercomputer. That was not sufficient to keep it cool, so they sealed the chassis (which was huge) and pumped it full of 4 tons of Fluorinert. -- Chris Adams <cma@cmadams.net>